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What are you looking for? Which cars run with this gearbox? Part type Expand. Reset filter. Technical issues and repair guidelines One of the peculiarities of the 01M transmission lies in the transversal positioning of the unit. The list of 01M vulnerabilities includes the following: The rubber hardens and poorly endures pressure, especially in winter. Older vehicles and overheated automatic gearboxes have the full set of rubber-coated pistons replaced in them.
The drum may become worn out due to breaking of the basket along the axle of the shaft. The green front drum washer - plastic sliding bearing - melts or becomes brittle due to the temperature and lateral pressure effect.
It is believed that years is the average normal lifespan for all 01MN electrical components, including sensors. After this term, the resistance of its wiring starts to increase, the channel gets worn out, the characteristics of the valve closure change, and the computer "rejects" them.
The Valve Body requires regular cleaning. As well as Torque Converter rebuilding ATF contamination comes from the Torque Converter and is a result of the dust flow from friction linings and worn out bearing washer. Contaminated ATF blocks channels and corrodes metal of these channels at some most loaded valves of the Hydraulic unit.
Disconnect negative battery cable and wait 30 seconds. Lift off air bag unit from steering wheel, and tilt air bag unit downward. Disconnect wiring connector from air bag unit. Remove steering wheel. Remove dash panel. Loosen screw holding cable sheath to gear selector support. Remove cable from lever. Remove spring clip holding cable housing to ignition assembly. Lift and tilt shift lock cable housing upward. Pull up shift lock cable until shift lock cable unhooks from ignition switch.
To install, position shift lock cable through under-dash panels. To complete installation, reverse removal procedure. Adjust shift lock control cable. TCM monitors input and output signals. All trouble code and related testing information is contained in scan tool. Leave TCM disconnected. If a problem is found, service harness or components as necessary.
If no problem is found, TCM may be defective. Check main hydraulic pressure under normal driving conditions. If main hydraulic pressures are not correct, check for incorrect idle speed, problem with pump or sticking valves in valve body.
After test, reconnect solenoid valves and using appropriate scan tool, erase trouble codes from memory. If you need to repeat stall speed test, wait 20 seconds.
Connect tachometer to engine. Warm engine to normal operating temperature. Move gear selector to "D" position. Open throttle to wide open throttle position. Note engine speed and release throttle pedal. If stall speed is within range, test is complete. If stall speed is greater than RPM too low, torque converter is faulty. If stall speed is too high, check 1st-3rd apply clutch or one-way clutch for slipping or damage. Remove oil lines and allow fluid to drain. Using pressurized solvent, flush remaining fluid and debris from oil lines and cooler.
Repeat flushing if necessary. Install a new external oil filter. Check torque converter for any wear or damage, and replace if necessary. If torque converter is being reused, drain old fluid. Remove oil pan and valve body assembly. Remove sealing plug from transaxle case. Remove oil pump bolts. Using two M8 bolts, remove oil pump from front of transaxle. Loosen and remove small planetary drive shaft bolt, washer and shim. Remove small planetary drive shaft. Remove supporting tube and one-way clutch circlips.
Remove one-way clutch assembly. Remove reverse brake clutch assembly. DO NOT remove input gear assembly, unless bearing or gear damage is present. Attach INCH-lb. Measure and record total roller bearing turning torque of drive pinion gear. This measurement is required for reassembly reference if roller bearings are reused. Remove dished washer, shim and bearing. Remove input transfer gear assembly from transaxle case. On left axle flange, remove bolt and remove axle flange.
On right axle flange, remove circlip. Using puller, remove right axle flange. If bearings are being reused, mark differential adjuster ring torque converter side bearing carrier to transaxle case. Using Bearing Adjuster Ring Socket , remove both differential bearing carriers.
Remove differential assembly from transaxle case. Using INCH-lb. Record measurement for reassembly. Remove nut from pinion. Using puller, remove output gear. Remove selector shaft and parking pawl assembly. Remove outer bearing support. Remove parking gear from pinion. Remove pinion and bearing from transaxle. Using pin socket, remove inner bearing support with drive pinion seal. If ring gear or differential housing is damaged, replace differential housing.
To reassemble differential, reverse disassembly. NOTE: If differential bearings are replaced, check differential side bearing preload and ring gear position. Remove speedometer drive gear and bushing. Using hydraulic press, replace bearing race s. Replace each roller bearing and race as a set. Check for worn or damaged parts and replace as necessary. Replace all seals and reassemble. NOTE: Specifications are not available from manufacturer. Compress each spring and install into cage.
Install cage assembly into outer ring. Rotate cage clockwise until lugs touch stop. Install piston into outer ring. Replace parts as necessary. Install adjustment shim, washer and bolt to pinion drive transfer gear end of small planetary drive shaft. Using a screwdriver, lock large sun gear drive shell to transaxle case. Tighten bolt to 22 ft.
Measure end play of small sun gear drive shaft. Adjustment shims range in thickness from. Disassemble clutch plates. Compress spring support, and remove circlip. Remove clutch piston. Ensure check ball in clutch housing is not damaged. Piston seal is part of piston. If damaged, replace reverse apply clutch piston.
Reassemble reverse apply clutch. NOTE: Assembled clutch clearance specification is not available from manufacturer. Ensure thrust plate is installed with shouldered side facing circlip. If necessary, remove parking pawl pin, detent spring screws and selector rod for manual valve from case.
Inspect bushings and bearing races, and replace if necessary. Install parking pawl pin if removed. Using a center punch, peen parking pawl pin. Install operating rod for manual valve, detent spring screws, multifunction switch and new seals. Using hydraulic press, install bearing to drive pinion transfer gear. Set transfer and drive pinion gears aside. Mark circlip for installation reference, and remove circlip.
Remove diaphragm spring circlip. Remove spring plates and clutch piston. If damaged, replace 1st-3rd apply clutch piston. Remove seal rings from turbine shaft. Install plate springs.
Compress spring support and install circlip. Install one inner splined and one outer splined clutch plate into clutch housing. Install remaining clutch plates to inner plate carrier.
Insert top thrust plate with smooth side facing clutch plate. Page Retrieving Trouble Codes Adjust shift lock control cable. Page 14 See Figs.
If a problem is found, service harness or components as necessary. If no problem is found, TCM may be defective. Page 15 Article Text p. Page 19 6 Remove planetary carrier with dished spring.
Remove reverse brake clutch assembly. See Figs. DO NOT remove input gear assembly, unless bearing or gear damage is present.
Attach INCH-lb. Measure and record total roller bearing turning torque of drive pinion gear. Page 24 See Fig. Remove outer bearing support. Remove parking gear from pinion. Remove pinion and bearing from transaxle. Using pin socket, remove inner bearing support with drive pinion seal. Page 28 Remove speedometer drive gear and bushing. Using hydraulic press, replace bearing race s.
Replace each roller bearing and race as a set. Page 29 Replace all seals and reassemble. NOTE: Specifications are not available from manufacturer. Page 30 See Figs. Rotate cage clockwise until lugs touch stop.
Install piston into outer ring. Page 34 Fig. Using hydraulic press, install bearing to drive Install plate springs.
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